Healing Harmony - NineHarmony

Solfeggio frequencies (174/285/396/417/528/639/741/852/963Hz) A simple sound app that lets you freely layer frequencies with individual playback or simultaneous playback of up to 9 tones. Key Features One-tap playback of 9 tones (supports simultaneous playback) Auto-stop timer (OFF / 5 / 10 / 15 / 30 / 60 min / Custom) Preset saving Light/Dark themes Easy-to-see simple round button UI Recommended Uses As background music for meditation, breathing, or breaks As ambient sounds for focused work or before bed Layer multiple frequencies to create and save your own unique tones based on your mood Important Notice This app is for relaxation/entertainment purposes only. It does not guarantee any medical benefits.